DNA-testing company 23andMe made headlines last week when it announced that it would share consumers' anonymized genetic data with pharmaceutical giant GlaxoSmithKline. Companies like 23andMe frequently share your DNA data with "third parties."

Calico, Google's stealth life extension spinoff, used DNA data from popular consumer genetics and genealogy company Ancestry for studies on aging and longevity beginning in 2015. No published research has come from the project so far, and now it has quietly ended.